git auto complete freezes terminal when password required

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http://serverfault.com – When executing a command such as this git pull origin BRANCH-1 and hitting tab (auto complete) I get a password prompt like so: git pull origin BRANCH-1Password: Then the terminal freezes. The cursor blinks but it would not accept any input from the keyboard. I can't Ctrl+c or enter the password. The only option is to close down the terminal which is sending me nuts. What are my options? (HowTos)